Edwards SIGA-TCDR — Signature Series temporal pattern generator driving fire and carbon monoxide tone patterns on compatible sounder bases.
Combination smoke and CO detectors must sound two distinct signals. This addressable module generates and synchronizes those patterns for SIGA-AB4GT and SIGA-AB4G-LF bases in Fire-plus-CO mode, which cannot produce them alone. The panel sends channel and sync commands, and the channel picks the pattern.
- Generates TC3, the NFPA 72 fire pattern, and TC4, the NFPA 720 CO tone
- In the US Channel 1 is TC3, Channel 2 is TC4; in Europe the two are reversed
- Uses two addresses on the signaling line circuit, one per channel
- Channel 1 has priority when both are active
- Needs a power limited, regulated 24 VDC fire signaling supply
Despite the name this is not a detector base and no detector mounts on it; Edwards lists it as related equipment to the bases. Pair it with the SIGA-AB4GT or SIGA-AB4G-LF. The SIGA-AB4G is the fire-only base and does not use this module. A SIGA-CRR or SIGA-MCRR polarity reversal relay activates all sounder bases on a loop.
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FAQ
Which sounder bases need the SIGA-TCDR?
The SIGA-AB4GT and SIGA-AB4G-LF bases need it in Fire-plus-CO mode to generate and synchronize the TC3 fire and TC4 CO tones for combination smoke/CO detectors.
How many addresses does it use?
Two SLC addresses: address 1 for Channel 1 and address 2 for Channel 2. In the U.S. Channel 1 is TC3 and Channel 2 is TC4; if both are active, Channel 1 has priority.
What power does it need?
A power-limited, regulated 24 VDC primary or auxiliary supply for fire protective signaling systems.
How are all sounder bases on a loop activated?
Use a SIGA-CRR (or SIGA-MCRR) polarity reversal relay; with the riser polarity reversed, all sounder bases on the loop activate.
